福建林业科技Issue(2)：29-33,5.DOI:10.13428/j.cnki.fjlk.2015.02.007
滇中地区入侵紫茎泽兰的潜在火行为
Potential Fire Behaviors of Invasive Eupatorium adenophorum in Middle-Yunnan Province
摘要
Abstract
After selecting field samples of fire sites from Xishan national park,Kunming,where Eupatorium adenophorum is the domi-nant species and its degree of dominance is a key element in behavior of fire,and by field investigating and lab experiments of fire behaviors,including ignite time,extinguishing time,heat values of radiation,flame height,and fire intensity of dead fuel and litter,the index of fire behaviors can be gained.The results are shown as the following:the ignite time of dead Eupatorium adenophorum and lit-ter are 2s and 3s,respectively,which means they are easily-ignited;the endurance of both flames exceeds 7 minutes,and the maximal flame heights of both are less than 1 meter,and their consuming rates are 86.5%and 77.0%,respectively.While their maximal fire intensity are 2351.2 kW/m and 2303.9 kW/m,which shows they are medium intensity fires.Their easily-ignited characteristic is due to the low ignite temperature which is below 300 degrees Celsius and their dead leaves are still on their stems.Once on fire,they will release massive amount of heat energy and bring about extinguishing difficulties.关键词
紫茎泽兰/凋落物/火行为Key words
Eupatorium adenophorum/litter/fire behaviors分类
农业科技引用本文复制引用
王秋华,仝艳民,李世友,徐盛基,钱斌,杨潇..滇中地区入侵紫茎泽兰的潜在火行为[J].福建林业科技,2015,(2):29-33,5.基金项目
国家自然科学基金（31300553）；云南省应用基础研究计划 （）
